For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is Options: A . &nbspconstant B . &nbspdependent only on Reynolds number C . &nbspa function of Reynolds number and relative roughness D . &nbspdependent on relative roughness only

For hydro-dynamically smooth boundary, the friction coefficient for turbulent fl

Question

For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is

Options:

A . constant

B . dependent only on Reynolds number

C . a function of Reynolds number and relative roughness

D . dependent on relative roughness only

Answer: Option B

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